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<a name="1" href="#1">1</a>   <em>/**<em>*</em></em>
<a name="2" href="#2">2</a>   <em> * $Id: DateConverter.html 10 2008-10-01 10:56:15Z azeckoski $</em>
<a name="3" href="#3">3</a>   <em> * $URL: http://reflectutils.googlecode.com/svn/maven/site/xref/org/azeckoski/reflectutils/converters/DateConverter.html $</em>
<a name="4" href="#4">4</a>   <em> * DateConverter.java - genericdao - Sep 8, 2008 12:52:47 PM - azeckoski</em>
<a name="5" href="#5">5</a>   <em> **************************************************************************</em>
<a name="6" href="#6">6</a>   <em> * Copyright (c) 2008 Aaron Zeckoski</em>
<a name="7" href="#7">7</a>   <em> * Licensed under the Apache License, Version 2.0</em>
<a name="8" href="#8">8</a>   <em> * </em>
<a name="9" href="#9">9</a>   <em> * A copy of the Apache License has been included in this </em>
<a name="10" href="#10">10</a>  <em> * distribution and is available at: <a href="http://www.apache.org/licenses/LICENSE-2.0.txt" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0.txt</a></em>
<a name="11" href="#11">11</a>  <em> *</em>
<a name="12" href="#12">12</a>  <em> * Aaron Zeckoski (azeckoski @ gmail.com) (aaronz @ vt.edu) (aaron @ caret.cam.ac.uk)</em>
<a name="13" href="#13">13</a>  <em> */</em>
<a name="14" href="#14">14</a>  
<a name="15" href="#15">15</a>  <strong>package</strong> org.azeckoski.reflectutils.converters;
<a name="16" href="#16">16</a>  
<a name="17" href="#17">17</a>  <strong>import</strong> java.sql.Timestamp;
<a name="18" href="#18">18</a>  <strong>import</strong> java.text.DateFormat;
<a name="19" href="#19">19</a>  <strong>import</strong> java.text.ParseException;
<a name="20" href="#20">20</a>  <strong>import</strong> java.text.ParsePosition;
<a name="21" href="#21">21</a>  <strong>import</strong> java.text.SimpleDateFormat;
<a name="22" href="#22">22</a>  <strong>import</strong> java.util.Calendar;
<a name="23" href="#23">23</a>  <strong>import</strong> java.util.Date;
<a name="24" href="#24">24</a>  
<a name="25" href="#25">25</a>  <strong>import</strong> org.azeckoski.reflectutils.ConstructorUtils;
<a name="26" href="#26">26</a>  <strong>import</strong> org.azeckoski.reflectutils.converters.api.Converter;
<a name="27" href="#27">27</a>  
<a name="28" href="#28">28</a>  
<a name="29" href="#29">29</a>  <em>/**<em>*</em></em>
<a name="30" href="#30">30</a>  <em> * Handles conversions from objects into {@link Date},</em>
<a name="31" href="#31">31</a>  <em> * generally the best way to handle this is to simply do conversions based on longs&lt;br/></em>
<a name="32" href="#32">32</a>  <em> * Allows control over the conversion formats which are used by settings the patterns or the formats&lt;br/></em>
<a name="33" href="#33">33</a>  <em> * &lt;br/></em>
<a name="34" href="#34">34</a>  <em> * Based on code from commons bean utils but updated for generics and removed complexity and (mis)usage of Exception&lt;br/></em>
<a name="35" href="#35">35</a>  <em> * </em>
<a name="36" href="#36">36</a>  <em> * @author Aaron Zeckoski (azeckoski @ gmail.com)</em>
<a name="37" href="#37">37</a>  <em> */</em>
<a name="38" href="#38">38</a>  <strong>public</strong> <strong>class</strong> <a href="../../../../org/azeckoski/reflectutils/converters/DateConverter.html">DateConverter</a> <strong>extends</strong> <a href="../../../../org/azeckoski/reflectutils/converters/BaseDateFormatHolder.html">BaseDateFormatHolder</a> implements Converter&lt;Date> {
<a name="39" href="#39">39</a>  
<a name="40" href="#40">40</a>      <strong>public</strong> Date convert(Object value) {
<a name="41" href="#41">41</a>          <strong>return</strong> DateConverter.convertToType(Date.<strong>class</strong>, value, getDateFormats());
<a name="42" href="#42">42</a>      }
<a name="43" href="#43">43</a>  
<a name="44" href="#44">44</a>      <em class="comment">// CONSTRUCTORS</em>
<a name="45" href="#45">45</a>      <strong>public</strong> <a href="../../../../org/azeckoski/reflectutils/converters/DateConverter.html">DateConverter</a>() {
<a name="46" href="#46">46</a>          <strong>super</strong>();
<a name="47" href="#47">47</a>      }
<a name="48" href="#48">48</a>  
<a name="49" href="#49">49</a>      <strong>public</strong> <a href="../../../../org/azeckoski/reflectutils/converters/DateConverter.html">DateConverter</a>(String[] patterns) {
<a name="50" href="#50">50</a>          <strong>super</strong>(patterns);
<a name="51" href="#51">51</a>      }
<a name="52" href="#52">52</a>  
<a name="53" href="#53">53</a>      <strong>public</strong> <a href="../../../../org/azeckoski/reflectutils/converters/DateConverter.html">DateConverter</a>(DateFormat[] formats) {
<a name="54" href="#54">54</a>          <strong>super</strong>(formats);
<a name="55" href="#55">55</a>      }
<a name="56" href="#56">56</a>  
<a name="57" href="#57">57</a>      
<a name="58" href="#58">58</a>      <em>/**<em>*</em></em>
<a name="59" href="#59">59</a>  <em>     * Convert an object to one of the following date types&lt;br/></em>
<a name="60" href="#60">60</a>  <em>     * &lt;ul></em>
<a name="61" href="#61">61</a>  <em>     *     &lt;li>&lt;code>java.util.Date&lt;/code>&lt;/li></em>
<a name="62" href="#62">62</a>  <em>     *     &lt;li>&lt;code>java.util.Calendar&lt;/code>&lt;/li></em>
<a name="63" href="#63">63</a>  <em>     *     &lt;li>&lt;code>java.sql.Date&lt;/code>&lt;/li></em>
<a name="64" href="#64">64</a>  <em>     *     &lt;li>&lt;code>java.sql.Time&lt;/code>&lt;/li></em>
<a name="65" href="#65">65</a>  <em>     *     &lt;li>&lt;code>java.sql.Timestamp&lt;/code>&lt;/li></em>
<a name="66" href="#66">66</a>  <em>     * &lt;/ul></em>
<a name="67" href="#67">67</a>  <em>     * </em>
<a name="68" href="#68">68</a>  <em>     * @param &lt;T></em>
<a name="69" href="#69">69</a>  <em>     * @param targetType the type to convert to (should be one of the given date types)</em>
<a name="70" href="#70">70</a>  <em>     * @param value any object</em>
<a name="71" href="#71">71</a>  <em>     * @return the converted value</em>
<a name="72" href="#72">72</a>  <em>     */</em>
<a name="73" href="#73">73</a>      <strong>public</strong> <strong>static</strong> &lt;T> T convertToType(Class&lt;T> targetType, Object value) {
<a name="74" href="#74">74</a>          <strong>return</strong> convertToType(targetType, value, <strong>null</strong>);
<a name="75" href="#75">75</a>      }
<a name="76" href="#76">76</a>  
<a name="77" href="#77">77</a>      <em>/**<em>*</em></em>
<a name="78" href="#78">78</a>  <em>     * @param &lt;T></em>
<a name="79" href="#79">79</a>  <em>     * @param targetType the type to convert to (should be one of the given date types)</em>
<a name="80" href="#80">80</a>  <em>     * @param value any object</em>
<a name="81" href="#81">81</a>  <em>     * @param dateFormats include date formats to use during the string -> date conversion</em>
<a name="82" href="#82">82</a>  <em>     * @return the converted value</em>
<a name="83" href="#83">83</a>  <em>     */</em>
<a name="84" href="#84">84</a>      @SuppressWarnings(<span class="string">"unchecked"</span>)
<a name="85" href="#85">85</a>      <strong>public</strong> <strong>static</strong> &lt;T> T convertToType(Class&lt;T> targetType, Object value, DateFormat[] dateFormats) {
<a name="86" href="#86">86</a>          <strong>if</strong> (value == <strong>null</strong>) {
<a name="87" href="#87">87</a>              <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"value to convert cannot be null"</span>);
<a name="88" href="#88">88</a>          }
<a name="89" href="#89">89</a>  
<a name="90" href="#90">90</a>          <em class="comment">// Handle java.sql.Timestamp</em>
<a name="91" href="#91">91</a>          <strong>if</strong> (value instanceof java.sql.Timestamp) {
<a name="92" href="#92">92</a>              <strong>long</strong> timeInMillis = ((Timestamp)value).getTime();
<a name="93" href="#93">93</a>              <em class="comment">// ---------------------- JDK 1.3 Fix ----------------------</em>
<a name="94" href="#94">94</a>              <em class="comment">// N.B. Prior to JDK 1.4 the Timestamp's getTime() method</em>
<a name="95" href="#95">95</a>              <em class="comment">//      didn't include the milliseconds. The following code</em>
<a name="96" href="#96">96</a>              <em class="comment">//      ensures it works consistently accross JDK versions</em>
<a name="97" href="#97">97</a>  <em class="comment">//            java.sql.Timestamp timestamp = (java.sql.Timestamp)value;</em>
<a name="98" href="#98">98</a>  <em class="comment">//            long timeInMillis = ((timestamp.getTime() / 1000) * 1000);</em>
<a name="99" href="#99">99</a>  <em class="comment">//            timeInMillis += timestamp.getNanos() / 1000000;</em>
<a name="100" href="#100">100</a>             <em class="comment">// ---------------------- JDK 1.3 Fix ----------------------</em>
<a name="101" href="#101">101</a>             <strong>return</strong> (T) toDate(targetType, timeInMillis);
<a name="102" href="#102">102</a>         }
<a name="103" href="#103">103</a> 
<a name="104" href="#104">104</a>         <em class="comment">// Handle Date (includes java.sql.Date &amp; java.sql.Time)</em>
<a name="105" href="#105">105</a>         <strong>if</strong> ( Date.<strong>class</strong>.isAssignableFrom(value.getClass()) ) {
<a name="106" href="#106">106</a>             <strong>long</strong> time = ((Date)value).getTime();
<a name="107" href="#107">107</a>             <strong>return</strong> (T) toDate(targetType, time);
<a name="108" href="#108">108</a>         }
<a name="109" href="#109">109</a> 
<a name="110" href="#110">110</a>         <em class="comment">// Handle Calendar</em>
<a name="111" href="#111">111</a>         <strong>if</strong> (value instanceof Calendar) {
<a name="112" href="#112">112</a>             <strong>long</strong> time = ((Calendar)value).getTimeInMillis();
<a name="113" href="#113">113</a>             <strong>return</strong> (T) toDate(targetType, time);
<a name="114" href="#114">114</a>         }
<a name="115" href="#115">115</a> 
<a name="116" href="#116">116</a>         <em class="comment">// Handle numbers</em>
<a name="117" href="#117">117</a>         <strong>if</strong> (value instanceof Number) {
<a name="118" href="#118">118</a>             <strong>long</strong> num = ((Number)value).<strong>long</strong>Value();
<a name="119" href="#119">119</a>             <strong>return</strong> (T) toDate(targetType, num);
<a name="120" href="#120">120</a>         }
<a name="121" href="#121">121</a> 
<a name="122" href="#122">122</a>         <em class="comment">// Convert all other types to String &amp; handle</em>
<a name="123" href="#123">123</a>         String stringValue = value.toString().trim();
<a name="124" href="#124">124</a>         <strong>if</strong> (stringValue.length() == 0) {
<a name="125" href="#125">125</a>             Object defaultValue = ConstructorUtils.getDefaultValue(targetType);
<a name="126" href="#126">126</a>             <strong>if</strong> (defaultValue == <strong>null</strong>) {
<a name="127" href="#127">127</a>                 <strong>throw</strong> <strong>new</strong> UnsupportedOperationException(<span class="string">"Date convert failure: Could not convert empty string to target ("</span>+targetType+<span class="string">") or get a default value for it"</span>);
<a name="128" href="#128">128</a>             }
<a name="129" href="#129">129</a>             <strong>return</strong> (T) defaultValue;
<a name="130" href="#130">130</a>         } <strong>else</strong> {
<a name="131" href="#131">131</a>             <em class="comment">// try to get the long value out of the string</em>
<a name="132" href="#132">132</a>             <strong>try</strong> {
<a name="133" href="#133">133</a>                 <strong>long</strong> num = <strong>new</strong> Long(stringValue);
<a name="134" href="#134">134</a>                 <strong>if</strong> (num > 30000000l) {
<a name="135" href="#135">135</a>                     <em class="comment">// must be a UTC time code, also, we only lost a week since 1970 so whatever</em>
<a name="136" href="#136">136</a>                     <strong>return</strong> (T) toDate(targetType, num);
<a name="137" href="#137">137</a>                 } <strong>else</strong> <strong>if</strong> (num > 10000l) {
<a name="138" href="#138">138</a>                     <em class="comment">// probably is a date like: YYYYMMDD so convert it</em>
<a name="139" href="#139">139</a>                     <strong>int</strong> date = (<strong>int</strong>) (num % 100);
<a name="140" href="#140">140</a>                     <strong>int</strong> remain = (<strong>int</strong>) (num / 100);
<a name="141" href="#141">141</a>                     <strong>int</strong> month = remain % 100;
<a name="142" href="#142">142</a>                     <strong>int</strong> year = remain / 100;
<a name="143" href="#143">143</a>                     <strong>if</strong> (date &lt;= 31 &amp;&amp; month &lt;= 12) {
<a name="144" href="#144">144</a>                         <strong>if</strong> (month > 0) { month -= 1; }
<a name="145" href="#145">145</a>                         Calendar calendar = Calendar.getInstance();
<a name="146" href="#146">146</a>                         calendar.clear();
<a name="147" href="#147">147</a>                         calendar.set(year, month, date);
<a name="148" href="#148">148</a>                         <strong>long</strong> time = calendar.getTimeInMillis();
<a name="149" href="#149">149</a>                         <strong>return</strong> (T) toDate(targetType, time);
<a name="150" href="#150">150</a>                     }
<a name="151" href="#151">151</a>                 }
<a name="152" href="#152">152</a>             } <strong>catch</strong> (NumberFormatException e) {
<a name="153" href="#153">153</a>                 <em class="comment">// ok, not a long probably so try parsing</em>
<a name="154" href="#154">154</a>             }
<a name="155" href="#155">155</a>         }
<a name="156" href="#156">156</a> 
<a name="157" href="#157">157</a>         <em class="comment">// Parse the Date/Time</em>
<a name="158" href="#158">158</a>         Calendar calendar = parse(stringValue, dateFormats);
<a name="159" href="#159">159</a>         <strong>if</strong> (calendar != <strong>null</strong>) {
<a name="160" href="#160">160</a>             <strong>long</strong> time = ((Calendar)value).getTimeInMillis();
<a name="161" href="#161">161</a>             <strong>return</strong> (T) toDate(targetType, time);
<a name="162" href="#162">162</a>         }
<a name="163" href="#163">163</a> 
<a name="164" href="#164">164</a>         <em class="comment">// Default String conversion</em>
<a name="165" href="#165">165</a>         <strong>return</strong> (T) toDate(targetType, stringValue);
<a name="166" href="#166">166</a>     }
<a name="167" href="#167">167</a> 
<a name="168" href="#168">168</a>     <em>/**<em>*</em></em>
<a name="169" href="#169">169</a> <em>     * Convert a long value to the specified Date type for this</em>
<a name="170" href="#170">170</a> <em>     * &lt;i>Converter&lt;/i>.</em>
<a name="171" href="#171">171</a> <em>     * &lt;p></em>
<a name="172" href="#172">172</a> <em>     *</em>
<a name="173" href="#173">173</a> <em>     * This method handles conversion to the following types:</em>
<a name="174" href="#174">174</a> <em>     * &lt;ul></em>
<a name="175" href="#175">175</a> <em>     *     &lt;li>&lt;code>java.util.Date&lt;/code>&lt;/li></em>
<a name="176" href="#176">176</a> <em>     *     &lt;li>&lt;code>java.util.Calendar&lt;/code>&lt;/li></em>
<a name="177" href="#177">177</a> <em>     *     &lt;li>&lt;code>java.sql.Date&lt;/code>&lt;/li></em>
<a name="178" href="#178">178</a> <em>     *     &lt;li>&lt;code>java.sql.Time&lt;/code>&lt;/li></em>
<a name="179" href="#179">179</a> <em>     *     &lt;li>&lt;code>java.sql.Timestamp&lt;/code>&lt;/li></em>
<a name="180" href="#180">180</a> <em>     * &lt;/ul></em>
<a name="181" href="#181">181</a> <em>     *</em>
<a name="182" href="#182">182</a> <em>     * @param type The Date type to convert to</em>
<a name="183" href="#183">183</a> <em>     * @param value The long value to convert.</em>
<a name="184" href="#184">184</a> <em>     * @return The converted date value.</em>
<a name="185" href="#185">185</a> <em>     */</em>
<a name="186" href="#186">186</a>     <strong>protected</strong> <strong>static</strong> Object toDate(Class&lt;?> type, <strong>long</strong> value) {
<a name="187" href="#187">187</a> 
<a name="188" href="#188">188</a>         <em class="comment">// java.util.Date</em>
<a name="189" href="#189">189</a>         <strong>if</strong> (type.equals(Date.<strong>class</strong>)) {
<a name="190" href="#190">190</a>             <strong>return</strong> <strong>new</strong> Date(value);
<a name="191" href="#191">191</a>         }
<a name="192" href="#192">192</a> 
<a name="193" href="#193">193</a>         <em class="comment">// java.sql.Date</em>
<a name="194" href="#194">194</a>         <strong>if</strong> (type.equals(java.sql.Date.<strong>class</strong>)) {
<a name="195" href="#195">195</a>             <strong>return</strong> <strong>new</strong> java.sql.Date(value);
<a name="196" href="#196">196</a>         }
<a name="197" href="#197">197</a> 
<a name="198" href="#198">198</a>         <em class="comment">// java.sql.Time</em>
<a name="199" href="#199">199</a>         <strong>if</strong> (type.equals(java.sql.Time.<strong>class</strong>)) {
<a name="200" href="#200">200</a>             <strong>return</strong> <strong>new</strong> java.sql.Time(value);
<a name="201" href="#201">201</a>         }
<a name="202" href="#202">202</a> 
<a name="203" href="#203">203</a>         <em class="comment">// java.sql.Timestamp</em>
<a name="204" href="#204">204</a>         <strong>if</strong> (type.equals(java.sql.Timestamp.<strong>class</strong>)) {
<a name="205" href="#205">205</a>             <strong>return</strong> <strong>new</strong> java.sql.Timestamp(value);
<a name="206" href="#206">206</a>         }
<a name="207" href="#207">207</a> 
<a name="208" href="#208">208</a>         <em class="comment">// java.util.Calendar</em>
<a name="209" href="#209">209</a>         <strong>if</strong> (type.equals(Calendar.<strong>class</strong>)) {
<a name="210" href="#210">210</a>             Calendar calendar = Calendar.getInstance();
<a name="211" href="#211">211</a>             calendar.setTimeInMillis(value);
<a name="212" href="#212">212</a> <em class="comment">//            calendar.setLenient(false);</em>
<a name="213" href="#213">213</a>             <strong>return</strong> calendar;
<a name="214" href="#214">214</a>         }
<a name="215" href="#215">215</a> 
<a name="216" href="#216">216</a>         <strong>throw</strong> <strong>new</strong> UnsupportedOperationException(<span class="string">"Date conversion failure: cannot convert long value ("</span>+value+<span class="string">") to ("</span>+type+<span class="string">")"</span>);
<a name="217" href="#217">217</a>     }
<a name="218" href="#218">218</a> 
<a name="219" href="#219">219</a>     <em>/**<em>*</em></em>
<a name="220" href="#220">220</a> <em>     * Default String to Date conversion.</em>
<a name="221" href="#221">221</a> <em>     * &lt;p></em>
<a name="222" href="#222">222</a> <em>     * This method handles conversion from a String to the following types:</em>
<a name="223" href="#223">223</a> <em>     * &lt;ul></em>
<a name="224" href="#224">224</a> <em>     *     &lt;li>&lt;code>java.sql.Date&lt;/code>&lt;/li></em>
<a name="225" href="#225">225</a> <em>     *     &lt;li>&lt;code>java.sql.Time&lt;/code>&lt;/li></em>
<a name="226" href="#226">226</a> <em>     *     &lt;li>&lt;code>java.sql.Timestamp&lt;/code>&lt;/li></em>
<a name="227" href="#227">227</a> <em>     * &lt;/ul></em>
<a name="228" href="#228">228</a> <em>     * &lt;p></em>
<a name="229" href="#229">229</a> <em>     * &lt;strong>N.B.&lt;/strong> No default String conversion</em>
<a name="230" href="#230">230</a> <em>     * mechanism is provided for &lt;code>java.util.Date&lt;/code></em>
<a name="231" href="#231">231</a> <em>     * and &lt;code>java.util.Calendar&lt;/code> type.</em>
<a name="232" href="#232">232</a> <em>     *</em>
<a name="233" href="#233">233</a> <em>     * @param type The Number type to convert to</em>
<a name="234" href="#234">234</a> <em>     * @param value The String value to convert.</em>
<a name="235" href="#235">235</a> <em>     * @return The converted Number value.</em>
<a name="236" href="#236">236</a> <em>     */</em>
<a name="237" href="#237">237</a>     <strong>protected</strong> <strong>static</strong> Object toDate(Class&lt;?> type, String value) {
<a name="238" href="#238">238</a>         <em class="comment">// java.sql.Date</em>
<a name="239" href="#239">239</a>         <strong>if</strong> (type.equals(java.sql.Date.<strong>class</strong>)) {
<a name="240" href="#240">240</a>             <strong>try</strong> {
<a name="241" href="#241">241</a>                 <strong>return</strong> java.sql.Date.valueOf(value);
<a name="242" href="#242">242</a>             } <strong>catch</strong> (IllegalArgumentException e) {
<a name="243" href="#243">243</a>                 <strong>throw</strong> <strong>new</strong> UnsupportedOperationException(<span class="string">"Date conversion failure: "</span> +
<a name="244" href="#244">244</a>                 <span class="string">"String must be in JDBC format [yyyy-MM-dd] to create a java.sql.Date"</span>);
<a name="245" href="#245">245</a>             }
<a name="246" href="#246">246</a>         }
<a name="247" href="#247">247</a> 
<a name="248" href="#248">248</a>         <em class="comment">// java.sql.Time</em>
<a name="249" href="#249">249</a>         <strong>if</strong> (type.equals(java.sql.Time.<strong>class</strong>)) {
<a name="250" href="#250">250</a>             <strong>try</strong> {
<a name="251" href="#251">251</a>                 <strong>return</strong> java.sql.Time.valueOf(value);
<a name="252" href="#252">252</a>             } <strong>catch</strong> (IllegalArgumentException e) {
<a name="253" href="#253">253</a>                 <strong>throw</strong> <strong>new</strong> UnsupportedOperationException(<span class="string">"Date conversion failure: "</span> +
<a name="254" href="#254">254</a>                 <span class="string">"String must be in JDBC format [HH:mm:ss] to create a java.sql.Time"</span>);
<a name="255" href="#255">255</a>             }
<a name="256" href="#256">256</a>         }
<a name="257" href="#257">257</a> 
<a name="258" href="#258">258</a>         <em class="comment">// java.sql.Timestamp</em>
<a name="259" href="#259">259</a>         <strong>if</strong> (type.equals(java.sql.Timestamp.<strong>class</strong>)) {
<a name="260" href="#260">260</a>             <strong>try</strong> {
<a name="261" href="#261">261</a>                 <strong>return</strong> java.sql.Timestamp.valueOf(value);
<a name="262" href="#262">262</a>             } <strong>catch</strong> (IllegalArgumentException e) {
<a name="263" href="#263">263</a>                 <strong>throw</strong> <strong>new</strong> UnsupportedOperationException(<span class="string">"Date conversion failure: "</span> +
<a name="264" href="#264">264</a>                         <span class="string">"String must be in JDBC format [yyyy-MM-dd HH:mm:ss.fffffffff] "</span> +
<a name="265" href="#265">265</a>                 <span class="string">"to create a java.sql.Timestamp"</span>);
<a name="266" href="#266">266</a>             }
<a name="267" href="#267">267</a>         }
<a name="268" href="#268">268</a> 
<a name="269" href="#269">269</a>         <strong>throw</strong> <strong>new</strong> UnsupportedOperationException(<span class="string">"Date conversion failure: cannot convert string value ("</span>+value+<span class="string">") to ("</span>+type+<span class="string">")"</span>);
<a name="270" href="#270">270</a>     }
<a name="271" href="#271">271</a> 
<a name="272" href="#272">272</a>     <em>/**<em>*</em></em>
<a name="273" href="#273">273</a> <em>     * Parse a String date value using the set of patterns.</em>
<a name="274" href="#274">274</a> <em>     *</em>
<a name="275" href="#275">275</a> <em>     * @param value The String date value.</em>
<a name="276" href="#276">276</a> <em>     * @return The converted Date object.</em>
<a name="277" href="#277">277</a> <em>     * @throws Exception if an error occurs parsing the date.</em>
<a name="278" href="#278">278</a> <em>     */</em>
<a name="279" href="#279">279</a>     <strong>protected</strong> <strong>static</strong> Calendar parse(String value, DateFormat[] dateFormats) {
<a name="280" href="#280">280</a>         Calendar calendar = <strong>null</strong>;
<a name="281" href="#281">281</a>         <strong>if</strong> (dateFormats != <strong>null</strong> &amp;&amp; dateFormats.length > 0) {
<a name="282" href="#282">282</a>             <strong>for</strong> (DateFormat <strong>for</strong>mat : dateFormats) {
<a name="283" href="#283">283</a>                 calendar = parse(value, format);
<a name="284" href="#284">284</a>                 <strong>if</strong> (calendar != <strong>null</strong>) {
<a name="285" href="#285">285</a>                     <strong>break</strong>;
<a name="286" href="#286">286</a>                 }
<a name="287" href="#287">287</a>             }
<a name="288" href="#288">288</a>         }
<a name="289" href="#289">289</a>         <strong>if</strong> (calendar == <strong>null</strong>) {
<a name="290" href="#290">290</a>             <em class="comment">// just do the simple attempt now</em>
<a name="291" href="#291">291</a>             DateFormat format = <strong>new</strong> SimpleDateFormat();
<a name="292" href="#292">292</a>             <strong>try</strong> {
<a name="293" href="#293">293</a>                 Date date = format.parse(value);
<a name="294" href="#294">294</a>                 <strong>if</strong> (date != <strong>null</strong>) {
<a name="295" href="#295">295</a>                     calendar = format.getCalendar();
<a name="296" href="#296">296</a>                 }
<a name="297" href="#297">297</a>             } <strong>catch</strong> (ParseException e) {
<a name="298" href="#298">298</a>                 calendar = <strong>null</strong>;
<a name="299" href="#299">299</a>             }
<a name="300" href="#300">300</a>         }
<a name="301" href="#301">301</a>         <strong>return</strong> calendar;
<a name="302" href="#302">302</a>     }
<a name="303" href="#303">303</a> 
<a name="304" href="#304">304</a>     <em>/**<em>*</em></em>
<a name="305" href="#305">305</a> <em>     * Parse a String into a &lt;code>Calendar&lt;/code> object using the specified &lt;code>DateFormat&lt;/code>&lt;br/></em>
<a name="306" href="#306">306</a> <em>     * Does exact matching (non-lenient) only on the given pattern&lt;br/></em>
<a name="307" href="#307">307</a> <em>     *</em>
<a name="308" href="#308">308</a> <em>     * @param value The String date value.</em>
<a name="309" href="#309">309</a> <em>     * @param format The DateFormat to parse the String value.</em>
<a name="310" href="#310">310</a> <em>     * @return The converted Calendar object OR null if it cannot be converted</em>
<a name="311" href="#311">311</a> <em>     */</em>
<a name="312" href="#312">312</a>     <strong>protected</strong> <strong>static</strong> Calendar parse(String value, DateFormat format) {
<a name="313" href="#313">313</a>         format.setLenient(false);
<a name="314" href="#314">314</a>         ParsePosition pos = <strong>new</strong> ParsePosition(0);
<a name="315" href="#315">315</a>         Date parsedDate = format.parse(value, pos); <em class="comment">// ignore the result (use the Calendar)</em>
<a name="316" href="#316">316</a>         Calendar calendar = <strong>null</strong>;
<a name="317" href="#317">317</a>         <strong>if</strong> (pos.getErrorIndex() >= 0 || pos.getIndex() != value.length() || parsedDate == <strong>null</strong>) {
<a name="318" href="#318">318</a>             calendar = <strong>null</strong>;
<a name="319" href="#319">319</a>         } <strong>else</strong> {
<a name="320" href="#320">320</a>             calendar = format.getCalendar();
<a name="321" href="#321">321</a>         }
<a name="322" href="#322">322</a>         <strong>return</strong> calendar;
<a name="323" href="#323">323</a>     }
<a name="324" href="#324">324</a> 
<a name="325" href="#325">325</a> }
</pre>
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